scholarly journals Diversity of lichens in the paramos of El Batallón and La Negra, General Juan Pablo Peñaloza National Park

2020 ◽  
Vol 77 (1) ◽  
pp. 096
Author(s):  
Vicente Marcano ◽  
Laura Castillo
Keyword(s):  
Land Use ◽  
National Park ◽  
Altitudinal Gradient ◽  
New Records ◽  
Montane Forest ◽  
Lichen Species ◽  
Ecological Data

Increasing temperatures and changing land-use in the Venezuelan Andes result in an accelerated decline of sensitive lichen populations. Monitoring of these populations by biological plot inventories in particularly vulnerable sites is urgently needed. In order to know the diversity and distribution of lichen species occurring in the paramos El Batallón and La Negra, General Juan Pablo Peñaloza National Park, in the Venezuelan Andes, we carried out various collections along an altitudinal gradient including montane forest (2100–3000 m) and paramo vegetation (3200–3650 m). The results showed a total of 104 species and 40 genera, 44 species from the montane forest, 82 species from the paramo, six new records for Venezuela, and 31 new records for the southwest of the Venezuelan Andes (Táchira State). A checklist with taxonomic, morphological and ecological data is provided for the most relevant species. Bunodophoron portachuelense V. Marcano & L. Castillo (Sphaeorophoraceae) is described from the paramo. Increasing forestry exploitation, livestock and cultivation during decades from the montane forest would explain the highest diversity found in the paramo.

Bryophyte diversity along an altitudinal gradient in Darién National Park, Panama

1992 ◽  
Vol 5 (1) ◽  
pp. 61-71 ◽  
Author(s):  
S. Rob Gradstein ◽  
Noris Salazar Allen
Keyword(s):  
Species Richness ◽  
Coastal Plain ◽  
Rain Forest ◽  
National Park ◽  
Altitudinal Gradient ◽  
Plant Conservation ◽  
Montane Forest ◽  
Species Assemblages ◽  
Forest Types ◽  
Seasonal Climate

A bryophyte inventory along an altitudinal gradient on Cerro Pirre (1200 m), Darién National Park, Panama, demonstrates that the different rain forest types along the gradient (inundatedlowland, hillside-lowland, submontane, montane elfin forest) have very different species assemblages. The montane forest has the largest number of exclusive species and the largest bryophyte biomass. Species richness is greatest in the submontane forest. The bryophyte flora of Cerro Pirre is not exceedingly rich in species owing to the rather low elevation of the mountain and the seasonal climate in the adjacent coastal plain. Nevertheless, the distinct altitudinal diversification and the occurrence of a considerable number of rare hepatic taxa, demonstrate the importance of Darién National Park as an area of plant conservation. Forty hepatic species are reported as new to Panama.

scholarly journals Diversity and distribution of lichens from the Cerro Duida and adjacent areas, Alto Orinoco, Amazonas, Venezuela

2021 ◽  
Vol 78 (2) ◽  
pp. e114
Author(s):  
Vicente Marcano ◽  
Harrie J.M. Sipman
Keyword(s):  
Land Use ◽  
Additional Data ◽  
New Records ◽  
Undescribed Species ◽  
Ecological Data ◽  
New Variety ◽  
Montane Vegetation ◽  
Guayana Shield ◽  
Amazonas State ◽  
Increasing Temperature

Increasing temperature and changing land-use in the Guayana Shield and Amazonia result in an accelerated decline of sensitive lichen populations. Monitoring of these populations by biological plot inventories in particularly vulnerable sites is urgently needed. In order to know the diversity and distribution of lichen species at the Alto Orinoco, Parque Nacional Duida-Marahuaca and nearby areas from Amazonas state, Venezuela, lichens were sampled during four expeditions in more than 40 plots located from 200 m (premontane forest) to more than 1500 m elevation (altotepuyana vegetation). Additional data were obtained from literature and herbaria. Our assessment, although incomplete, revealed 205 described species, 150 undescribed species, 84 genera and 27 families. Among the described species 162 were observed in the basimontane vegetation, 38 in the montane vegetation, 24 in the altotepuyana vegetation, while 20 appear to be endemic to the study area. Sixty-nine species are new records for the Cerro Duida. A checklist with taxonomic and ecological data is presented. Five new species and one new variety are described: Cladonia duidana V.Marcano & A.Morales sp. nov. (Cladoniaceae), Pertusaria orinoquensis V.Marcano sp. nov., Sticta kunuhana V.Marcano sp. nov. (Lobariaceae), S. spruceana V.Marcano sp. nov. (Lobariaceae), Xanthoparmelia esmeraldensis V.Marcano & A.Morales sp. nov. (Parmeliaceae), and Lepraria arbuscula (Nyl.) Lendemer & Hodk. var. fumarprotocetrarica V.Marcano var. nov.

DIVERSITY AND ECOLOGY OF LAND SNAILS IN GUNUNG HALIMUN SALAK NATIONAL PARK (GHSNP) IN JAVA, INDONESIA

Zoo Indonesia ◽  
2020 ◽  
Vol 28 (1) ◽  
Author(s):  
Ayu Savitri Nurinsiyah ◽  
Ita Faizah ◽  
Yogi Prasetio ◽  
Tedi Setiadi ◽  
Ristiyanti Marsetiowati Marwoto ◽  
...  
Keyword(s):  
Species Richness ◽  
Soil Ph ◽  
National Park ◽  
New Records ◽  
Land Snail ◽  
Montane Forest ◽  
Land Snails ◽  
Tropical Montane Forest ◽  
Snail Species ◽  
June July

The land snail fauna of the largest tropical montane forest in Java, the Gunung Halimun Salak National Park (GHSNP), was surveyed during the dry season (June-July) in 2015, concentrating on four park’s resorts, i.e. Cikaniki, Mt. Botol, Cisarua (Halimun area) and Cidahu (Salak area). In total, 399 specimens representing 43 species were collected. Prior to the surveys, 48 land snail species were known from the GHSNP. Fifteen new records for the GHSNP were discovered so 63 species are now known to inhabit the Park. This number represent 25% of the total land snail fauna of Java. 21 of the species found in GHSNP are endemic to Java. The species richness of the plots in GHSNP was correlated with soil pH and the composition of the land snail communities was correlated with elevation, annual mean temperature, and amount of deadwood.

scholarly journals Sympatry between species of Juliomys (Rodentia: Sigmodontinae) along an altitudinal gradient in the Serra da Bocaina National Park

2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Ana Cláudia Delciellos ◽  
Marcia Aguieiras ◽  
Gabriela Colombo de Mendonça ◽  
Ana Carolina Loss ◽  
Oscar Rocha-Barbosa ◽  
...  
Keyword(s):  
Spatial Patterns ◽  
National Park ◽  
Altitudinal Gradient ◽  
New Records ◽  
Molecular Data ◽  
Congeneric Species ◽  
Species Occurrence ◽  
Previous Record ◽  
Temporal Factors ◽  
First Time

Abstract The altitudinal gradient found in the Atlantic Forest may play a role in establishing sympatry areas between congeneric species of sigmodontine rodents. For some genera with cryptic species, the elucidation of spatial patterns of distribution may be useful to understand reproductive isolation and speciation patterns, as well as spatial and temporal factors determining the boundaries of species’ geographical distributions. Here we evaluated the occurrence of sympatry between Juliomys species along an altitudinal gradient in the Serra da Bocaina National Park (SBNP). Additionally, we review the occurrence of J. rimofrons and add new records of species occurrence in the SBNP, aided by karyological and molecular data. The study was carried out at four sites in the SBNP, which ranged between 770 and 1,200 m a.s.l. We captured 24 Juliomys specimens. Six out of 24 specimens were collected and karyotyped. For J. pictipes, the karyotype had a 2n of 36 and a FN of 34, and for J. ossitenuis 2n of 20 and FN of 36. Seventeen out of 24 Juliomys specimens were used in the cytochrome b phylogeny: 12 specimens grouped with J. pictipes and five with J. ossitenuis. Additionally, a specimen previously identified as J. rimofrons (MN 77793) clustered together with J. pictipes. Juliomys pictipes and J. ossitenuis were found in sympatry in two out of four sites in altitudes higher than 1,000 m a.s.l.. Our karyological and molecular data provided the detection of two Juliomys species in the SBNP for the first time (J. pictipes and J. ossitenuis) and disregarded the previous record of J. rimofrons. Our record of sympatry between J. pictipes and J. ossitenuis represents the fifth known record of sympatry between these species up to date.

New records of genus Volvariella (Pluteaceae) from Cuc Phuong National Park

2018 ◽  
Vol 60 (3) ◽  
pp. 81-88
Author(s):  
Huyen Thanh Le ◽  
Ngoc Thi Chu ◽  
◽  
Keyword(s):  
National Park ◽  
New Records

Eight new lichen species and 88 new records from Sri Lanka

2016 ◽  
Vol 119 (2) ◽  
pp. 131-142 ◽  
Author(s):  
Gothamie Weerakoon ◽  
Patricia A. Wolseley ◽  
Omal Arachchige ◽  
Marcela Eugenia da Silva Cáceres ◽  
Udeni Jayalal ◽  
...  
Keyword(s):  
Sri Lanka ◽  
New Records ◽  
Lichen Species

scholarly journals Impacts of land use changes on soil erosion in Pa Deng sub-district, adjacent area of Kaeng Krachan National Park, Thailand

2012 ◽  
Vol 7 (No. 1) ◽  
pp. 10-17 ◽  
Author(s):  
S. Wijitkosum
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Land Cover ◽  
National Park ◽  
Land Use Changes ◽  
Influential Factors ◽  
Geographical Information ◽  
Adjacent Area ◽  
Erosion Risk ◽  
Study Results

Soil erosion has been considered as the primary cause of soil degradation since soil erosion leads to the loss of topsoil and soil organic matters which are essential for the growing of plants. Land use, which relates to land cover, is one of the influential factors that affect soil erosion. In this study, impacts of land use changes on soil erosion in Pa Deng sub-district, adjacent area of Kaeng Krachan National Park, Thailand, were investigated by applying remote sensing technique, geographical information system (GIS) and the Universal Soil Loss Equation (USLE). The study results revealed that land use changes in terms of area size and pattern influenced the soil erosion risk in Pa Deng in the 1990–2010 period. The area with smaller land cover obviously showed the high risk of soil erosion than the larger land cover did.

scholarly journals New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama

Zootaxa ◽  
2004 ◽  
Vol 541 (1) ◽  
pp. 1 ◽  
Author(s):  
ODALISCA BREEDY ◽  
HECTOR M. GUZMAN
Keyword(s):  
New Species ◽  
National Park ◽  
Pacific Coast ◽  
New Records ◽  
Scanning Electron Micrographs ◽  
Species List ◽  
The Pacific ◽  
Fourth Species ◽  
Shallow Water Species ◽  
Water Species

Four new shallow water species of the genus Pacifigorgia were found in recent surveys along the Pacific coast of Panama. One of the species was only found in dense patches at two shallow seamount-like localities inside the Coiba National Park, Gulf of Chiriqu . Two other species were patchily distributed at several localities in the Gulf of Chiriqu . A fourth species was widely distributed around the gulfs of Chiriqu and Panama encompassing a broad range of habitats and depths. The new species are described and illustrated in detail with scanning electron micrographs (SEM) of the sclerites, and colour photographs of the colony forms. The suspected occurrence of a particular Pacifigorgia species for this region is confirmed and two other new records are added to the species list. With the new four species, a total of 15 are established for Panama, making 31 species for the eastern Pacific to date.

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